/Engine/Plugins/FX/Niagara/Source/Niagara/Public/NiagaraComponent.h
Gets the current value of a parameter which is being used by the simulation. This value will reflect runtime changes such as those made by sequencer, or in PIE through code or blueprint.
[FNiagaraVariant](API\Plugins\Niagara\FNiagaraVariant) GetCurrentParameterValue ( const [FNiagaraVariableBase](API\Plugins\Niagara\FNiagaraVariableBase) & InKey ) const